Development of a High-Voltage Induction Motor Drive with Isolation and Amplification Circuits Using TMS320F28335 for EV Applications
Author : Varad Patil and Dr. Siddhant Gudhe
Abstract :
This paper presents the design and implementation of an electric vehicle induction motor drive system controlled by a digital signal processor. The research focuses on operating a three-phase squirrel cage induction motor using an inverter powered by a high-voltage direct current link created from a three-phase diode bridge rectifier. Real-time pulse-width modulation signals generated by the processor enable precise open-loop control of the motor. To ensure safe and reliable signal transmission between low-voltage control circuits and the high-power inverter stage, isolation circuits employing optocouplers were designed along with custom amplification circuits. Additionally, an inverter driver circuit operating at twelve volts direct current was developed to generate logic pulses required for gate control. The system integration was validated through experimental testing under various load conditions, demonstrating stable and efficient motor operation. The study highlights practical applications of power electronics, embedded control systems, and signal conditioning, providing a comprehensive solution for electric vehicle motor drives.
Keywords :
Electric vehicle, induction motor, digital signal processor, inverter, pulse-width modulation, isolation circuits, power electronics, embedded control, motor drive system.
